# Marvin SxS – eBooks and comics > Dual-library eBook and comic reader with advanced side-by-side reading. (iPhone/iPad app by Appstafarian Limited.) - Source: https://appshunter.io/ios/app/marvin-sxs-ebooks-and-comics/id1092838007 (this page in markdown: same URL + `.md`) - Developer: [Appstafarian Limited](https://appshunter.io/developer/577374974) - Category: Books, Education - Price: $4.99 - Rating: 4.29/5 from 35 App Store ratings · 26 written reviews indexed - Age rating: 17+ - Requires: iOS 9.0 · 83 MB - Languages: English - Released: 2016-06-20 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/marvin-sxs-ebooks-and-comics/id1092838007/reviews.md ## What is Marvin SxS? Marvin Side-by-Side is a special version of Marvin that helps you manage a second library, and read or study two books at the same time (1). SxS works great with devices that support Split View and Slide over. - Includes all the features in the regular version of Marvin. - Keep a second library, great for shared devices in the family (1). - Read or study two books side-by-side using Slide Over and Split View (1, 2). - SxS libraries can be protected using a password and Touch ID. - Easily transfer books to and from Marvin. Here are a few highlights of this release: - Built from scratch with a brand new interface. - Opens DRM-free EPUB books, CBX, and CBR comics. - Supports all the latest iOS technologies including Split View, Slide Over, Spotlight, Touch ID, Today Widgets, iCloud, and iPad Pro. - High-fidelity rendering with the most comprehensive set of customization options you're likely to use. - Multi-theme UI with optional automatic light/dark switching. - Vertical scrolling with auto scroll, guide bars, and edge tapping. - Goodreads integration. - Text-to-speech. - Karaoke (speed reading). - External Bluetooth keyboard and remote control support including customizable key commands for in-book navigation and control. - Side-load your own fonts. - Reading statistics. - New library viewing modes and management tools. - Quick launch panel on iPad. - Fully customizable, independent, portrait and landscape multi column modes. - Whole book page numbering. - Substantially improved highlighting. - Footnote popups. - Photo exporer. - Reading journal with photos, tags, and maps. - Extensive import and export tools. Notes: (1) the second library and side-by-side reading requires the corresponding Marvin 3 app. (2) works best on devices that support Split View and Slide Over. Visit appstafarian.com for a complete and impressive feature list. Marvin SxS opens DRM-free EPUB books (basic support for 3.0), and CBZ/CBR comics. If you're into DRM-free books, we worked hard to make Marvin the best way to enjoy them. ## Key features - Manage a second library - Read two books side-by-side - Supports Split View and Slide Over - Opens DRM-free EPUBs, CBZ, and CBR - High-fidelity rendering - Extensive customization options - Goodreads integration ## Recent user reviews (10 of 26) All indexed reviews: https://appshunter.io/ios/app/marvin-sxs-ebooks-and-comics/id1092838007/reviews.md ### 1/5 — iOS 16 bug *2022-11-15, version 3.1.2* Please please please update this app to be compatible with iOS 16. Especially the annotation function. When selecting an area and trying to mark it, can’t find the mark icon!!! And can’t choose the color as well. The icons are all gone. It’s different from what I used before. Please fix the bug!!! ### 1/5 — Watch-out, not compatible with iOS 16! *2022-10-27, version 3.1.2* I’ve loved using Marvin for years, but iOS 16 broke Marvin. The pages freeze, and only reboot when you reboot the iPad. This behavior is especially noticeable when looking up a word by pressing on the word for a definition. The developer has been MIA for years, but Marvin has been OK till know. The last update was 5 years ago, Marvin needs work! Bring back the developer to make an update! ### 4/5 — Ammar Al asady *2022-03-16, version 3.1.2* This application is wonderful, but the most important thing for me is the searching inside the book especially I merge several parts of books in one folder, which makes the searching somewhat take a long time 6-7 minutes if the folder has involved in 26 texts book to complete searching in all these texts books. In another hand there is a pros one feature in this searching has to excel on searching in the pocketbook app. That is the results of searching has consequent in the list hasn't prevent you from paging the different parts of the folder without this list has disappeared, and you still able to ### 5/5 — Love it *2021-12-13, version 3.1.2* This is best reader. I can easily, wirelessly transfer from Mac my collections. Get it! ### 5/5 — Still the best. *2021-09-20, version 3.1.2* No updates usually means the app has been abandoned. With Marvin it means the app is just perfect. ### 5/5 — Epub Perfection! *2021-09-06, version 3.1.2* Being an ebook nerd, i’ve never seen any software with proper integration and equal support for PDF & Epub. This one focuses on Epub, and you may need to install a secondary app for the sake of compatibility with PDF files. But as a former blind Apple fan, i must confess that Marvin more than solves the foolish functionality incompetence of Apple Books, while having a better overall UI design from my point of view. The only thing that worries me is that the developer calls it Marvin 3, which raises the question on wether one can own a lifetime usage license of it with a onetime purchase or not. Assuming the developer stays content with the current payment policy, i would give it 5 of 5, because it is in many aspects really close to an Epub perfection. Thank you! ### 4/5 — Developer still here? *2020-12-04, version 3.1.2* Its a great app but seems developer abandoned it years ago. Latest updates were more than 3 years ago. This app has potential to be even greater as iOS updates change. Developer please don't abandon this app ### 5/5 — The best e-reader since Stanza *2020-02-03, version 3.1.2* I love this app. Easy. Functional. Classic layout. Intuitive design. Fast. Any book seems to load flawlessly and effortlessly. I am mystified as to why there are only 14 reviews. I saw where one person said the developer had given up on the app. I can only say that I very much hope that is wrong and that the developer is very much still involved. I’d hate to think this app might not work eventually. I run this app on an iPhone XS MAX and also on a first year iPad Pro. The app runs flawlessly on both. I used Stanza long long ago when us early adopters knew every app in the tiny app store. I’ve used other apps since Stanza’s demise. I used iBooks a lot, but this last iOS was the final straw that pushed me to no longer use iBooks except to import web stuff as a pdf. iBooks constantly loses every book when updated. It no longer allows you to copy things from it in iTunes. Instead of getting broader and more open, iBooks gets more and more limited. I’ve searched for what feels like eons for an app that I fully trust and love. Fir me, that’s this app. If the developer keeps the app updated, I’d happily pay $9.99 for this. Yep. It’s that great. ### 1/5 — Backups *2019-12-15, version 3.1.2* How are we supposed to backup/restore with the removal of iTunes from macOS? Developer, give us another way man. Don’t take my money and run. 😒 ### 4/5 — Great app, just one bug. *2019-04-01, version 3.1.2* My go-to e-reader. Excellent. Tons of features. Just one bug: When I highlight some text, sometimes the text disappears. I need to close the app and re-open to see the highlighted text again. ## Frequently asked questions about Marvin SxS ### What does Marvin SxS do? Marvin SxS is a specialized version of Marvin designed to help you manage a second library and read or study two books at the same time. It leverages features like Split View and Slide Over on compatible devices for a dual-reading experience. ### What types of books can I read with Marvin SxS? This app opens DRM-free EPUB books (with basic support for EPUB 3.0) and CBZ/CBR comics. It is optimized for users who enjoy DRM-free content. ### Is Marvin SxS free to use? Yes, Marvin SxS is available for free. The app description does not mention any costs or in-app purchases for its core functionality. ### What devices is Marvin SxS compatible with? Marvin SxS is built to work with the latest iOS technologies, including Split View and Slide Over, making it ideal for iPads that support these features. It also supports other iOS technologies like Touch ID and iCloud. ### What are the main benefits of using Marvin SxS for reading? Marvin SxS offers a unique dual-library management system and the ability to read two books side-by-side. It boasts high-fidelity rendering, extensive customization options, Goodreads integration, text-to-speech, and karaoke reading modes. ## Version history (last 1 release) ### 3.1.2 — 2017-10-11 This app has been updated by Apple to display the Apple Watch app icon. This update includes: * New: Improved compatibility with iOS 11 and latest devices. * Fixed: Dropbox connectivity problems. * Updated: Improved Dropbox sync performance. * Updated: Improved performance of image effects in comic viewer. * Fixed: Display artefacts on latest devices and system software. * Updated: Twitter and Facebook share sheets replaced by system share sheet +++ * Miscellaneous performance improvements and fixes. +++ From iOS 11 onwards, native Twitter and Facebook share sheets need to be replaced with the standard system share sheet. To post you will need the official Twitter and/or Facebook apps installed. Thanks a lot to everyone who took the time to submit a bug report and provide feedback. ## Apps similar to Marvin SxS | App | Rating | Price | Category | | --- | --- | --- | --- | | [Rome AR](https://appshunter.io/ios/app/rome-ar/id1024503700) | — | Free | Books | | [Book of Enoch and Audio Bible](https://appshunter.io/ios/app/book-of-enoch-and-audio-bible/id996963600) | 4.8 (6,369) | Free | Books | | [1611 King James Bible Version](https://appshunter.io/ios/app/1611-king-james-bible-version/id977184480) | 4.8 (4,496) | Free | Books | | [iDickens: Ghost Stories](https://appshunter.io/ios/app/idickens-ghost-stories/id1012435580) | 4.1 (30) | $3.99 | Books | | [Marbel Shape Puzzle](https://appshunter.io/ios/app/marbel-shape-puzzle/id983053840) | — | Free | Books | | [Prometheus E-KNIHY](https://appshunter.io/ios/app/prometheus-e-knihy/id1036173340) | — | Free | Books | ## More apps by Appstafarian Limited - [Marvin Classic - eBook reader for epub](https://appshunter.io/ios/app/marvin-classic-ebook-reader-for-epub/id667361209) - [Marvin Classic (free edition) - eBook reader for epub](https://appshunter.io/ios/app/marvin-classic-free-edition-ebook-reader-for-epub/id711411659) - [Gerty - eBook reader for epub, journal, notes, photos and maps](https://appshunter.io/ios/app/gerty-ebook-reader-for-epub-journal-notes-photos-and-maps/id901817060) - [Sift Lite - Gesture based email triage for all your mailboxes](https://appshunter.io/ios/app/sift-lite-gesture-based-email-triage-for-all-your-mailboxes/id962271381) - [Marvin 3](https://appshunter.io/ios/app/marvin-3/id1086482858) All apps by Appstafarian Limited: https://appshunter.io/developer/577374974 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*